baber/WOPTO huggingface dataset:
Patent GB-202966-A (GB)
IPC: H02K23/02
Filed: 1923-07-24
Abstract: 202,966. Akt.-Ges. Brown, Boveri, et Cie. Aug. 28, 1922, [Convention date]. Exciting. - The short-circuit current of a continuous-current generator a having a separate exciter b is limited by countercompounding the main machine at d and compounding the exciter at f with the load current and arranging the saturation of the exciter so that its compounding is less effective at overloads than at normal load on the main machine. Fig. 2 shows volts or excitation plotted against load current of the main machine, oA and oB being respectively normal and short-circuit currents. Curve 1 shows the volts of the exciter, i.e. the ampere-turns of the exciting coil c to some scale, and curve 2 shows the counter-compounding ampere-turns in the coil d. Curve 3, which is the difference between curves 1 and 2, shows that the resulting excitation applied to the machine a is substantially constant at the value oC up to full load oA and then falls away to zero at the short-circuit current oB. A damping winding may be placed on the exciter to assist the natural magnetic lag, whereby the action of the coil f is further retarded behind that of the coil d.
Patent GB-716681-A (GB)
Title: Process for the production of titanium tetrachloride
IPC: C22B34/12
Filed: 1952-07-28
Abstract: Oxidic titanium raw materials, particularly titanium slags, are chlorinated at, say 1000 DEG -1300 DEG  C. as a suspended bed in a gas stream containing carbon monoxide and chlorine.  1-2 volumes carbon monoxide per volume of chlorine are employed depending in part on the iron content of the raw materials.  The reaction gases may be diluted with inert gas, e.g. nitrogen or carbon dioxide including the tail gas obtained after condensation of titanium tetrachloride. Phosgene may wholly or partly replace the carbon monoxide-chlorine mixture.  Moisture, preferably below 0.1 per cent. by volume, may suitably be present in the reaction gases. The titaniferous material, which may be ground to be from 10-300 mesh may contain magnesium and calcium oxides, which are converted to chlorides and volatilized during the process.  These are condensed by cooling to about 300 DEG C. by injection of cold liquid titanium tetrachloride.  Ferric chloride is thereafter condensed by cooling to 150 DEG  C. by the admixture of cooled recycled chlorination gas, and finally the titanium tetrachloride by washing with cold liquid tetrachloride. Aluminium and silicon chlorides are simultaneously condensed.  The carbon monoxide-chlorine mixture may be produced by conducting a mixture of oxygen and chlorine through a hot bed of carbon.  The latter, e.g. petroleum coke, should first be freed from water and hydrogen by calcination at 800-1000 DEG  C., and it may be treated as a suspended bed.  The temperature may be kept at 1000-1100 DEG  C. by the addition of carbon dioxide to the oxygen chlorine mixture.
Patent GB-137764-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G3/00
Filed: 1919-08-01
Abstract: 137,764. Noble, E. E. Aug. 1, 1919. U-tube and like superheaters. - In a superheater having groups of tubes expanded into plates which are bolted or otherwise secured to the superheater headers, the plates are forged or pressed out in the form of a dome so that large groups of tubes may be connected to the headers without enlarging the openings in the headers. The circular tube-plates A, Figs. 2 and 4, has tapering sides, which fit into a tapering aperture in the circular header B. The tube holes K are normal to flat faces A<1> formed on the surface of the plate. The plate may be secured by a bolt C passing across the header, or by a bolt which screws into a cross-piece engaging with a band passing around the header. In a modification, Figs. 7 and 9, the tube plate is rectangular and makes a face joint with the flat-faced header. The head of the securing bolt C, in this case, engages with a part of the header wall left between the openings.
Patent GB-440431-A (GB)
Title: Improvements relating to agitating devices for use in connection with paper-making machines
IPC: D21F1/02
Filed: 1934-06-28
Abstract: 440,431. Agitating pulp in papermaking machines. RUSSELL, D., Rothes House, Markinch, Fife. June 28, 1934, No. 19080. [Class 96] An agitator 4, 5, partly or wholly immersed in pulp substantially where it flows on to the wirecloth 3 of a paper-making machine, comprises rotating oblique discs 5 on a spindle or spindles 4. The discs 5 may be perforate or have excrescences. The discs of two or more spindles may interpenetrate and may rotate in opposite directions. The agitator may be between the breast roll 6 and the slices. Reference has been directed by the Comptroller to Specifications 145,845, [Class 96], and 426,070.
Patent GB-666353-A (GB)
Title: Improvements in or relating to apparatus for fabricating strip stock from plastic materials
IPC: B29C48/355
Filed: 1949-07-20
Abstract: <PICT:0666353/IV (a)/1> A strip of material, e.g. a synthetic linear polyamide, is formed by feeding molten polyamide, by a screw 11, between the nip of rollers 5, 6 which are cooled by contact with water in a bath 9. The roller 5 is mounted so as to allow the distance between the rollers to be adjusted.  Take-off rollers 17 maintain a slight tension on the strip, but they also allow the strip to slip, when necessary.  The material is heated by electric heaters 13.
Patent GB-1237023-A (GB)
Title: Apparatus for simultaneously determining the carbon content and temperature of liquid steel
IPC: G01K7/04
Filed: 1969-04-15
Abstract: 1,237,023. Measuring temperature. NIPPON KOKAN K. K. April 15, 1969 [April 15, 1968], No. 19146/69. Heading G1D. [Also in Division C7 and H1] Apparatus for determining the carbon content and temperature of liquid steel comprises a sampling vessel 4 having an aperture 3, an inner thermocouple 5, an outer thermocouple 7, a lance 2 on which the vessel is supported, means for passing gas through the lance, into the vessel and out through the aperture and a permeable stopper 17 permitting the gas flow but preventing a counter flow of molten steel. The gas flow is maintained until the vessel, which is covered by a paper sleeve 6 and has metal shields 9, 10, is below the surface slag. On ceasing the gas flow molten steel enters the vessel and is deoxidized by an aluminium wire deoxidizer 8. The thermocouples are connected by wires 16 which pass through a steel tube 18 to external thermometers. The thermocouple 7 measures the temperature at a predetermined depth in the bath of molten steel. The vessel 4 is drawn up after being immersed in the bath to enable the thermocouple 5 to measure the liquidus temperature which is dependent on the carbon content of the steel.
Patent GB-354931-A (GB)
Title: Improved short-base range and height finding telemeter
IPC: G01C3/20
Filed: 1930-06-24
Abstract: 354,931. Range-finders. BURGESS, S., 41, St. Vincent Place, Glasgow.- (Morelle, J. ; 42, Rue de la Tour d'Auvergne, Paris.) June 24, 1930, No. 19190. [Class 97 (i).] In a single-observer range-finder adapted for measuring heights or horizontal ranges and having for this purpose a double deviating system the elements of which are rotated in opposite directions around the axis of the instrument through angles equal to the angle of sight, the two deviating elements are arranged to provide exactly equal deviations of the light beam, the total deviation being zero for all relative positions of the elements when the target is at infinity. The deviating system which is employed between one of the end reflectors and the eyepiece comprises in one form, Fig. 1, two similar plane-parallel plates 2, 21 mounted in pivots 3, 3<1> in sleeves 4, 4<1> which can be rotated in opposite directions by the gearing shown through angles equal to the angle of sight. The adjusting-spindle of the instrument carries a dial 12 on which the heights or horizontal distances are read, and is also provided with a worm 13 gearing with a worm wheel 14 which has internal teeth meshing with external teeth on a ring 16. The ring 16 is prevented from rotating by a strap 15 so that rotation of the wheel 14 causes it to be displaced along the optical axis and to produce equal rotations of the plates 2, 2<1> about their pivots 3, 31 by means of rods 17, 17<1>. If for a particular setting of the plates about their pivots the deviation produced by each plate is d then when the sleeves 4, 4<1> are oppositely rotated through an angle S the total deviation is 2d Cbs S and the instrument indicates the horizontal range. For indicating height the sleeves are turned in opposite directions through 90‹ from the positions shown. The deviation for an angle of sight S then becomes 2d Sin S. In another form, Fig. 5, the deviating device consists of two pairs of oppositely-arranged prisms 22, 23 and 22<1>, 23<1> mounted in sleeves 26, 26<1> which can be rotated in opposite directions through angles equal to the angle of sight. The prisms 23, 23<1> can also be displaced along the optical axis relatively to the prisms 22, 22<1> by means of a member 24 having external rack teeth engaged by a pinion 25 on the adjusting-spindle of the rangefinder. In another form the deviating device comprises two pairs of oppositely arranged prisms the elements of which are rotated equally in opposite directions by rotation of the adjusting spindle, the pairs of prisms being bodily rotated in opposite directions through angles equal to the angle of sight.
Patent GB-350259-A (GB)
Title: Improvements in steam generators and water heaters
IPC: F22B1/18
Filed: 1930-06-24
Abstract: 350,259. Baffles in boiler water. FOUNTAIN, H. J., 6, Brim Hill, East Finchley, London. June 24, 1930, No. 19194. [Class 123 (ii).] In steam generators and waterheaters having a vertical or nearly vertical heating surface P fitted with water tubes, e.g. thimble tubes T or open-ended tubes O, there being room for a man to work between the boiler shell and the heating surface, a short baffleplate C is arranged close to the lower part of the heating surface to create an upward current therebetween. A second baffle D mav extend from the bottom of the water space to a little above the bottom edge of the baffle C to prevent cold water from entering the lower tubes. The baffles may be of thin corrugated plate and when the baffle D is dispensed with the corrugations in baffle C conveniently run horizontally to trap steam and heat the baffle to a greater extent. Specification 211,342, [Class 123 (ii), Steam generators], is referred to.
Patent GB-1188713-A (GB)
Title: Process for Increasing the Storage Life of Cement
Inventor: BOLSING FRIEDRICH
IPC: C04B28/02
Filed: 1967-04-26
Abstract: 1,188,713. Cement. TEUTONIA MISBURGER PORTLAND - CEMENTWERK. 26 April, 1967, No. 19197/67. Heading C1H. The storage life of cement is increased by the addition of a C 12-22  aliphatic or substituted aliphatic primary secondary or tertiary amine, e.g. stearylamine. The amine can be added to the clinker before grinding. Optionally longchain acids can be present, e.g. montanic or wax acids or these derived from the oils of coconut, palm, palm kernal, soya, ground nut, rape and cottonseed, tallow, hard fat, train oil, or animal waste fats.
Patent GB-374303-A (GB)
Title: Improvements in or relating to milling machines
IPC: B23C1/025
Filed: 1931-07-04
Abstract: 374,303. Milling. PARKINSON, E., PARKINSON, E., and PARKINSON, H., Canal Ironworks, Shipley, Yorkshire. July 4, 1931, No. 19287. [Class 83 (iii).] In a milling-machine of the knee-type having an offset telescopic brace at the front of the machine for connecting knee and overarm, resilient means are provided for supporting the whole or part of the weight of the brace. The brace 1 slides in a boss 4, forming part of the knee 7, to which it may be clamped during cutting, and is shown resiliently supported by a spring 10 carried by a tubular column 11 over which the brace slides, the upper end of the spring being housed in a hole in the brace ; fluid means may be used in lieu of the spring.
Patent GB-627552-A (GB)
Title: Improvements in and relating to electromagnetic protective relays
IPC: H01H83/14
Filed: 1945-07-30
Abstract: 627,552. Electromagnetic relays; control of motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 30, 1945, No. 19401. Convention date, Aug. 5, 1944. [Classes 38(iii) and 38(v)] An electromagnetic protective relay for a three-phase motor comprises two coils 1, 2 arranged substantially at right angles with one another, a pivoted armature 7, and contacts 11 operated by the armature. The coils are connected in two of the supply lines to the motor and it is stated in the Specification that the armature normally occupies a central position, the rotary forces due to the two coils neutralizing each other. In the event of failure of either of the two lines having the coils, one of the coils will be de-energized, and an insulating extension 9 of the armature will separate the contacts 11, thereby opening the main circuit-breaker 15. Should a failure occur in the line not having a relay coil, the current in one of the remaining phases will be reversed so that the resultant flux will, it is stated, be substantially at right angles with the centre line of the cylinder 4, thereby causing contacts 11 to be opened. The armature may be restored to its normal position by hand or by a spring, after which the motor is restarted by pressing button 17.
Patent GB-788712-A (GB)
Title: Improvements in or relating to distillation apparatus
IPC: C10G7/00
Filed: 1956-06-22
Abstract: <PICT:0788712/III/1> <PICT:0788712/III/2> In a distillation apparatus comprising a vortex chamber V having one or more tangential inlets 18 for distilland and a stripper S below and communicating with the vortex chamber, there is provided a separating plate 36 between the stripper and the vortex chamber and having a central opening 37 connected to a riser 38 while the annular space 39 around the riser communicates with the stripper by at least one downcomer duct 43 which passes through the separating plate and is arranged to deliver liquid into the stripper.  This arrangement prevents entrainment of liquid flowing into the stripper in the stripper gas and/or vapour rising from the stripper.  The diameter of the opening 37 is preferably between 0.4 and 0.7 of the diameter of the stripper.  The radially disposed vortex breakers 47 have an upper edge 49 sloping down from the top of the riser to the shell of the vortex chamber. Each chamber formed by the vortex breakers may have its own downcomer to the stripper or the lower edge 48 terminates above the plate 36 so that each chamber communicates with the downcomer 43.  If the vortex chamber is a flash chamber operated under reduced pressure, flanges 40 and 41 are provided on the riser to prevent liquid creeping up the side.  Vapours leave the vortex chamber through the collar 19 and may be led to a conventional rectifying column or a catalytic cracking plant.  In an example a topped crude oil was introduced at 390 DEG C. into the chamber V operating at a pressure of 43 mm. of mercury, and for comparative purposes under similar conditions in a similar apparatus having vortex breakers but without a separating plate.  In the latter case, vapours leaving the chamber V had 3.2 per cent of the liquid leaving the base of the stripper entrained therein, whereas in the apparatus of the invention the vapours contained only 1.85 per cent of the liquid.
Patent GB-1216953-A (GB)
Title: Improvements in support assemblies for mineral mines
IPC: E21D23/00
Filed: 1969-04-16
Abstract: 1,216,953. Advancing mine roof support assemblies. GEWERKSCHAFT EISENHUTTE WESTFALIA. 16 April, 1969 [12 Oct., 1968], No. 19472/69. Heading E1P. In an advancing mine roof support assembly comprising a central frame II adapted to be advanced in parallel relative to two interconnected outer frames I, III by aligned and interconnected means 6, 7, 8, 8' the central frame is pivotally connected as at 9, 10 to the advancing jack means and positioned relative thereto by auxiliary jacks 11, 12.
Patent GB-404288-A (GB)
Title: Improvements relating to inclinometers particularly for use in aircraft
IPC: G01C9/22
Filed: 1932-08-09
Abstract: 404,288. Inclinometers. REID & SIGRIST, Ltd., and REID, G. H., Canbury Park Road, Kingston-on-Thames. Aug. 9, 1932, No. 19479. [Class 97 (ii).] A liquid-level inclinometer, particularly for use on aircraft for indicating pitching and rolling, comprises a U- tube system with two limbs in which the liquid levels are visible and a third invisible limb effective in a plane at an angle to the plane in which the U-tube system operates. In the form shown, the two visible limbs 1 are united at top and bottom by cross tubes 2 and the lower ends of the limbs 1 are connected by rearwardly extending tubes 3 to a chamber 4. An air tube 5 connects the top of the chamber 4 to the middle of the upper tube 2. Liquid fills the system till it is half-way up the limbs 1 when the instrument is level. The two tubes 3 may be replaced by a single tube and the limbs 1 and tubes 2 replaced by a circular tube which may surround the dial of a gyroscopic turn indicator or other instrument and be mounted therewith on the instrument panel. In a modification the limbs 1 are made of glass and the remainder of the instrument of metal. Damping means such as a constriction in one of the tubes may be provided. Fig. 3 shows how the limbs 1 may be formed to give a magnified indication at certain points.
Patent GB-937421-A (GB)
Title: Improvements relating to synthetic rubber compositions
IPC: C08L23/22
Filed: 1959-06-08
Abstract: Compositions comprise blends of butyl rubber with an olefin copolymer rubber, i.e. a copolymer of at least one mono-olefin with a hydrocarbon containing two or more ethylenic double bondsor containing one or more ethylenic double bonds and having an endocyclic structure, both rubbers having a degree of unsaturation between 0,75 and 4%, the butyl rubber and olefin copolymer rubber being in relative proportions between 70:30 and 40:60, the Mooney viscosity of the butyl rubber (ML -8 at 125 DEG F.) being above 65 or below 50, and that of the olefin copolymer rubber below 40 or above 65, the relative proportions of the rubbers being such that the blend has a Mooney viscosity of 40 to 60.  The butyl rubber may be a copolymer of isobutylene with butadiene or isoprene.  The olefin copolymer rubber may be a copolymer of a mono-olefin containing 2 to 10 carbon atoms with butadiene, isoprene, cyclopentadiene, norbornene, bicyclopentadiene, bicyclo-(2,2,2)-octa-2,5-diene, and unsaturated derivatives of bicyclo-(3,2,1)-octane, bicyclo-(3,3,1)-nonane and bicyclo-(3,2,2)-nonane.  The blends may be compounded with conventional ingredients, e.g. carbon black, zinc oxide, stearic acid, tetramethyl thiuram disulphide and p  tellurium diethyl dithiocarbamate, and vulcanized with sulphur, preferably in the presence of a peroxide curing agent such as dicumyl peroxide. Examples describe blends comprising isobutylene-isoprene copolymers with ethylene-propylene-dicyclopentadiene copolymers.  Specification 880,904 is referred to.
Patent GB-481078-A (GB)
Title: Improvements in and relating to vapour electric discharge devices
IPC: H01J13/12
Filed: 1937-07-15
Abstract: 481,078. Metallic - vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 15, 1937, No. 19644. Convention date, July 16, 1936. [Class. 39 (i)] [Also in Group XXXV] The anchoring electrode 5, Fig. 1, in a pool-type discharge device consists of a wick-like body permanently dipping into the pool of mercury, gallium, sodium, cadmium &c., and composed of a mass of cohering particles of a material capable of being wet by the cathode liquid. In the form described, the body consists of a carburized mass of particles of tantalum, tungsten or molybdenum, preferably the last. The metal is powdered to the fineness of a 200 mesh sieve, and then compressed at about 3¢ tons per square inch. The compressed mass is then sintered in vacuum or an inert atmosphere at a temperature not less than 1400‹ C. and preferably at 1500‹ C. for about 2 hours. The sintered mass is then carburized by firing at a temperature of at least 1250‹ C. and preferably 1500‹ C. for about 1 hour in a graphite tube and in a hydrogen atmosphere. Prior to use, the wick is saturated by plunging it hot into the material of the cathode pool in vacuum or an inert atmosphere. In Fig. 1, the electrode is permanently immersed in the cathode pool. Fig. 6 shows another arrangement in which the cathode material is positively supplied to the underside of the electrode 67. The cathode material 65 is contained in a reservoir 63 and is circulated by . an electromagnetic pump through the tubes 70,71 annular shell 72 and pipe 82 from which it returns through the electrode 67 to the reservoir. The pump comprises an iron core 73, and 75 and coils 77, 78, 79 supplied from a polyphase alternating current source. The cathode structure is cooled by a water jacket 89 with inlet and outlet 90, 91. The starting device in Fig. 1 consists of an electrode 15 resiliently supported by a spring 16. The electrode is drawn down into contact with the electrode 5 by a magnet 27 which is energized by a circuit 25, 26, 28 when the main circuit is closed by the switch 20. The magnet is short-circuited when contact between 15 and 5 is made, and the spark made when the electrode 15 moves back initiates the arc with the holding electrodes 30, 31. The energizing circuits for these electrodes include coils 36, which hold open the switch 26 in the magnet circuit during normal operation of the device.
Patent GB-1299478-A (GB)
Title: Improvements in or relating to mechanical data-recording devices
IPC: B41J15/16
Filed: 1970-04-24
Abstract: 1299478 Perforating machines SIEMENS AG 24 April 1970 [25 April 1969] 19688/70 Heading B4B [Also in Division B6] Punched tape issuing from the casing 13 of a tape perforator is held against the upper surface of the casing by a pivoted flap 12 which covers the exit. The exit is provided with a severing edge 14 against which the tape may be torn. The flap acts as a sound deadening means. The invention is also applied to a selective printer (see Division B6).
Patent GB-530923-A (GB)
Title: Improvements in methods of sealing electric conductors through a vitreous wall
IPC: H01J9/32
Filed: 1939-07-06
Abstract: 530,923. Uniting metal to glass. GENERAL ELECTRIC CO., Ltd., and BREADNER, R. L. July 6, 1939, No. 19689. [Class 36] To seal a number of conductors 6 through a flat glass wall 2, they are mounted so that the ends are co-planar as in a bead 5, the wall is softened by heat and the set of conductors is pressed through the wall. Preferably each has a glass bead 7 on it and the pressure may be applied by a spring having a stop released on the wall attaining the correct temperature.
Patent GB-407859-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B63/00
Filed: 1933-07-12
Abstract: 407,859. Sewing - machines. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Union Special Machine Co. ; 400, North Franklin Street, Chicago, U.S.A.) July 12, 1933, No. 19702. [Class 112.] The rotating hook 3 of a sewing - machine is cooled and cleared from lint by an air blower 32<1> which is operated from the shaft 2 driving the hook. Air is supplied through a ball valve to the nozzle by a piston 20 actuated by an eccentric 17. The hook shaft 4 is so geared to the shaft 2 that the hook makes a complete rotation during the in-stroke of the piston.